The two cones close there eyes as they take a deep breath, The clones quickly start to focus the my raw charka into their lungs as they start to think about the way fire behaves, and how it reacts with the air around it super heating it, by doing this it helps them change it into katon nature chakra. They then perform the Dog → Rat → Tiger hand seals. Both release a stream of flames, that combine into a single flame. When they combine it's shaped into a flaming dragon which heads towards your clone.